The Ford F-150 3.5 Ecoboost 365hp (2008 - 2014) produces 365bhp and 569Nm in standard form. Our Stage 1 ECU tuning file raises output to 400bhp and 600Nm, a gain of 35bhp and 31Nm, with no hardware modifications required. The file is delivered through the ByteFLASH portal and is ready to write to the vehicle.